During an assessment of the cranial nerves, the nurse finds the following: Asymmetry when the client frowns, uneven lifting of the eyebrows, sagging of the lower eyelids, and an escape of air from the right side when the client puffs their cheeks. This would indicate the dysfunction of which of the cranial nerves?
Motor component of IV (Trochlear)
Motor and sensory components of XI (Accessory)
Motor component of VII (Facial)
Motor component of X (Vagus) and sensory component of XII (Hypoglossal)
The Correct Answer is C
A) Motor component of IV (Trochlear): The trochlear nerve primarily controls the superior oblique muscle of the eye, which is responsible for downward and lateral eye movements. The findings described do not relate to eye movement and therefore do not indicate dysfunction of this nerve.
B) Motor and sensory components of XI (Accessory): The accessory nerve innervates the sternocleidomastoid and trapezius muscles, primarily affecting head rotation and shoulder elevation. The symptoms noted in the assessment do not pertain to these muscle functions, so this option is not correct.
C) Motor component of VII (Facial): The signs of asymmetry in frowning, uneven eyebrow lifting, sagging eyelids, and air escaping when puffing the cheeks are characteristic of dysfunction in the facial nerve (cranial nerve VII). This nerve controls the muscles of facial expression, and impairment would lead to the described asymmetrical movements.
D) Motor component of X (Vagus) and sensory component of XII (Hypoglossal): The vagus nerve affects autonomic functions and some swallowing muscles, while the hypoglossal nerve controls tongue movements. Neither nerve is primarily responsible for the facial expressions described in the assessment findings, making this option incorrect.
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Correct Answer is D
Explanation
A) The patient has asthma: While asthma can lead to respiratory symptoms and issues, it is not typically associated with clubbing of the fingernails. Asthma primarily affects airway constriction and inflammation, rather than causing the long-term changes in nail morphology seen with clubbing.
B) The patient has cardiovascular disease: Although some cardiovascular conditions can lead to clubbing, it is more commonly associated with chronic lung diseases. Cardiovascular disease might cause other signs or symptoms, but clubbing alone is not a definitive indicator of this condition.
C) The patient has emphysema: Emphysema, a type of chronic obstructive pulmonary disease (COPD), is characterized by the destruction of lung tissue and impaired airflow. While it can contribute to hypoxemia, clubbing is not a common finding specifically associated with emphysema.
D) The patient has chronic hypoxemia: Clubbing of the fingernails is a classic sign of chronic hypoxemia, often resulting from long-term respiratory conditions like COPD, interstitial lung disease, or lung cancer. It indicates a prolonged lack of oxygen in the blood, leading to changes in the nail bed and digit shape. Given the patient's long smoking history, chronic hypoxemia is the most likely explanation for this finding.
Correct Answer is ["B","C","E"]
Explanation
A) Alert and oriented: Being alert and oriented typically indicates adequate oxygenation, not hypoxia. Patients experiencing hypoxia are more likely to show signs of confusion or altered mental status rather than clarity.
B) Cyanosis: Cyanosis is a classic sign of hypoxia, presenting as a bluish discoloration of the skin and mucous membranes due to low oxygen levels in the blood. This is a significant indicator of inadequate oxygenation.
C) Anxiety and restlessness: These symptoms are common responses to hypoxia as the body attempts to compensate for insufficient oxygen. Patients may feel anxious or restless as they struggle to breathe or feel a sense of impending doom.
D) Oxygen saturation 96%: An oxygen saturation level of 96% is generally considered normal and indicates adequate oxygenation. Therefore, this finding does not suggest hypoxia.
E) Capillary refill 5 seconds: A prolonged capillary refill time can indicate poor perfusion and potential hypoxia. Inadequate blood flow can lead to reduced oxygen delivery to tissues, making this a relevant sign of hypoxia